Electrolyte additive and lithium secondary battery comprising same
US11024881B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 6, 2019 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | May 9, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides an electrolyte additive comprising a salt of an anion, derived from a nitrogen-atom-containing compound, with Cs+ or Rb+.Further, the present invention provides an electrolyte additive further comprising lithium difluoro bis(oxalato) phosphate.The present invention provides a non-aqueous electrolyte comprising a lithium salt, a non-aqueous organic solvent, and the electrolyte additive, and may provide a lithium secondary battery comprising: a cathode employing a cathode active material; an anode employing an anode active material; a separator interposed between the cathode and the anode; and the non-aqueous electrolyte.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.